19555185

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^2\times {\mathrm{347}}^1$

素因数の和:402

約数の個数: 48

約数和(自身を含む): 35896896

約数和(自身を除く): 16341711

約数列:

[1, 3, 5, 13, 15, 17, 39, 51, 65, 85, 195, 221, 255, 289, 347, 663, 867, 1041, 1105, 1445, 1735, 3315, 3757, 4335, 4511, 5205, 5899, 11271, 13533, 17697, 18785, 22555, 29495, 56355, 67665, 76687, 88485, 100283, 230061, 300849, 383435, 501415, 1150305, 1303679, 1504245, 3911037, 6518395, 19555185]

約数ペア:

[(1, 19555185), (3, 6518395), (5, 3911037), (13, 1504245), (15, 1303679), (17, 1150305), (39, 501415), (51, 383435), (65, 300849), (85, 230061), (195, 100283), (221, 88485), (255, 76687), (289, 67665), (347, 56355), (663, 29495), (867, 22555), (1041, 18785), (1105, 17697), (1445, 13533), (1735, 11271), (3315, 5899), (3757, 5205), (4335, 4511)]